#include <iostream>
using namespace std;
namespace shuda
{
class CBase
{
	public:
	CBase()
	{
		x = 1; y=2;
	}
	int x, y;
};
}

class CDerived: public CBase
{
	public:
	CDerived():CBase()
	{
		m = 3; n=4;
	}
	int n, m;
};

int main()
{
	CDerived cD;
	cout << cD.m << endl;
}
